drivers/mmc/host/s3cmci.h

   1 /*
   2  *  linux/drivers/mmc/s3cmci.h - Samsung S3C MCI driver
   3  *
   4  *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 /* FIXME: DMA Resource management ?! */
  12 #define S3CMCI_DMA 0
  13
  14 enum s3cmci_waitfor {
  15         COMPLETION_NONE,
  16         COMPLETION_FINALIZE,
  17         COMPLETION_CMDSENT,
  18         COMPLETION_RSPFIN,
  19         COMPLETION_XFERFINISH,
  20         COMPLETION_XFERFINISH_RSPFIN,
  21 };
  22
  23 struct s3cmci_host {
  24         struct platform_device  *pdev;
  25         struct mmc_host         *mmc;
  26         struct resource         *mem;
  27         struct clk              *clk;
  28         void __iomem            *base;
  29         int                     irq;
  30         int                     irq_cd;
  31         int                     dma;
  32
  33         unsigned long           clk_rate;
  34         unsigned long           clk_div;
  35         unsigned long           real_rate;
  36         u8                      prescaler;
  37
  38         int                     is2440;
  39         unsigned                sdiimsk;
  40         unsigned                sdidata;
  41         int                     dodma;
  42         int                     dmatogo;
  43
  44         struct mmc_request      *mrq;
  45         int                     cmd_is_stop;
  46
  47         spinlock_t              complete_lock;
  48         enum s3cmci_waitfor     complete_what;
  49
  50         int                     dma_complete;
  51
  52         u32                     pio_sgptr;
  53         u32                     pio_words;
  54         u32                     pio_count;
  55         u32                     *pio_ptr;
  56 #define XFER_NONE 0
  57 #define XFER_READ 1
  58 #define XFER_WRITE 2
  59         u32                     pio_active;
  60
  61         int                     bus_width;
  62
  63         char                    dbgmsg_cmd[301];
  64         char                    dbgmsg_dat[301];
  65         char                    *status;
  66
  67         unsigned int            ccnt, dcnt;
  68         struct tasklet_struct   pio_tasklet;
  69 };